<template>
    <div class="app-container">
        <el-form label-width="120px">
            <el-form-item label="信息描述">
                <el-tag type="info">excel模版说明</el-tag>
                <el-tag>
                    <i class="el-icon-download"/>
                    <a :href="'/static/01.xlsx'">点击下载模版</a>
                </el-tag>

            </el-form-item>

            <el-form-item label="选择Excel">
                <el-upload
                    ref="upload"
                    :auto-upload="false"
                    :on-success="fileUploadSuccess"
                    :on-error="fileUploadError"
                    :disabled="importBtnDisabled"
                    :limit="1"
                    :action="BASE_API+'/eduService/subject/'"
                    name="file"
                    accept="application/vnd.ms-excel">
                    <el-button slot="trigger" size="small" type="primary">选取文件</el-button>
                    <el-button
                        :loading="loading"
                        style="margin-left: 10px;"
                        size="small"
                        type="success"
                        @click="submitUpload">上传到服务器</el-button>
                </el-upload>
            </el-form-item>
        </el-form>
    </div>
</template>

<script>
	export default {
		data(){
			return{
				BASE_API: process.env.BASE_API, // 接口API地址
				importBtnDisabled: false, // 按钮是否禁用,
				loading: false
            }
        },
        created() {
		},
        methods:{
			//点击按钮上传文件到接口
			submitUpload(){
                // this.fileUploadBtnText = '正在上传'
                this.importBtnDisabled = true
                this.loading = true
                this.$refs.upload.submit()
            },
            //上传成功执行
			fileUploadSuccess(response){
                this.loading = false
                if(response.code === 200){
					this.$message({
						type:'success',
						message:'添加课程分类信息成功'
					})

					//跳转课程分类列表
					//路由跳转
					this.$router.push({path:'/subject/list'})
                }else {
					this.loading = false
					this.$message({
						type:'error',
						message:`${response.data.message}`
					})
                }
            },
            //上传失败执行
			fileUploadError(){
				this.loading = false
				this.$message({
					type:'error',
					message:'添加课程分类信息失败'
				})
            }
        }
	}
</script>

<style scoped>

</style>